Forest of the Fallen

{t}: Add {b} or {g} to your mana pool.
{b}{g}{1}{x}{t}: Target player destroys land
equal to the X.
At the beginning of your upkeep target
player loses a life and you gain two life.
The titans have roamed these woods for eons. I
have followed in there footsteps searching for
those who have wandered before there time.